JPH0142704B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for changing the direction of a traveling toy using radio control.

[Conventional technology]

Conventionally, the direction changing device for this type of traveling toy has been to displace a steering plate attached to the front wheels left and right by forward and reverse operation of a servo motor via a worm gear mechanism, etc., to change the direction of the front wheels, that is, to go straight or turn right Alternatively, a configuration configured to perform a left turn conversion is known.

However, in the conventional direction changing device, if the running toy is frequently changed in direction from side to side, the servo motor must be switched between forward and reverse directions more frequently, and therefore the various contacts constituting the electrical system of the servo motor generates a spark.

The generation of sparks in the servo motor causes damage to the electrical system of the servo motor and malfunction of the wireless controller. In particular, servo motors are expensive due to their excellent control performance, so if the control circuit is devised so as not to generate sparks, the manufacturing cost will further increase.

From this point of view, the applicant first placed electromagnets that can be energized with different polarities and at least a pair of magnets held with different polarities facing each other on a vehicle body, and placed the electromagnets or the pair of magnets in a horizontal plane. The control element is fixed to one end of a rotatably pivoted control element, and is engaged with a steering plate that connects the control element to a wheel, and depending on the energized state of the electromagnet, one of the magnets provided on the control element becomes an electromagnet. He developed a direction changing device configured to displace the control element in either direction by being attracted by it, and filed a patent application (Japanese Patent Publication No. 52827/1983).

[Problem that the invention seeks to solve]

Since the above-mentioned direction changing device is composed of a combination of an electromagnet and a magnet, it is not only simple in construction, but also can significantly reduce manufacturing costs, and is always stable and reliable without malfunctioning of the radio control device. It has the advantage of achieving direction change control. However, in this type of direction changing device, it is preferable in terms of operation to maintain the wheels so that they can move straight when the electromagnet is de-energized. For this reason, in the previously proposed device, a pair of support rods is arranged symmetrically with respect to the shaft that pivots the controller, and one end of this support rod is pivotally connected to the vehicle body base of the traveling toy. The middle part of the control element is elastically connected with a spring, and a locking part formed on the back surface of the control element is elastically held at a predetermined neutral position at the swinging end. The disadvantage is that the configuration is somewhat complicated.

Therefore, an object of the present invention is to further improve control performance and manufacture by simplifying the mechanism for holding the controller in the neutral position when no control is performed in the direction changing device using electromagnets and magnets as proposed above. An object of the present invention is to provide a direction changing device for a traveling toy that can reduce costs.

[Means for solving problems]

A direction changing device for a traveling toy according to the present invention includes an electromagnet in which both ends of an excitation core energized with different polarities are oriented in the same direction, and a magnet in which both left and right ends are held with different polarities, which are arranged facing each other on a vehicle body. and a controller portion formed in a middle portion of a steering member in which an end portion of one excitation core of the electromagnet is divided into two parts, a magnet is sandwiched between the two parts, and the electromagnet or magnet is pivotably supported in a horizontal plane. It is characterized by being fixed at one end.

That is, in the present invention, the controller part is integrally provided with the steering member, and the operation of the controller part is directly transmitted to the steering member, and a magnet is added to the electromagnet to maintain a constant magnetic force even in a non-excited state. By configuring the control element to act, it is possible to simplify the configuration of the control element and to improve the stability and reliability of the steering operation.

Therefore, in the direction changing device for a traveling toy according to the present invention, the electromagnet has an E-shaped core structure, the central core is divided into two parts, the magnet is held between them, and the divided central core parts are held in different polarities. Furthermore, it is preferable to have a configuration in which a coil is wound around the central iron core and the central iron core and the magnet are disposed facing each other.

In this case, the coil wound around the excitation core should consist of a double coil wound with different polarities, or
Alternatively, it can be constructed so that it can be energized by reversing the polarity using a single coil.

Further, in the above-mentioned direction change device for a running toy, the electromagnet is fixedly arranged on the vehicle body, the magnet is fixed to one end of the control element part, and when the electromagnet is deenergized, the attraction relationship between the magnet and the excitation iron core of the electromagnet is established. It is preferable to configure the steering member to be held in a neutral state. In this case, the electromagnet can be configured to energize or de-energize the coil via a radio-controlled system.

〔Example〕

Next, embodiments of the direction changing device for a traveling toy according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the body structure of a traveling toy using a radio control system implementing the device of the present invention. In FIG. 1, reference numeral 10 indicates the entire body base, and 12 indicates the wheels. A pair of wheels 12, 12 are coupled to both ends of the steering member 14. Therefore, in the illustrated example, if the steering member 14 is turned to the left, the wheels 12,
12 will be deflected to the left. A middle portion of the steering member 14 is pivotally connected to a shaft 16 formed in the vehicle body base 10 and is integrally provided with a control element portion 18. This controller section 18 has a magnet 20
be placed in a fixed position. On the other hand, an electromagnet 22 is fixedly arranged on the vehicle body base 10 so as to face the magnet 20 arranged on the controller section 18 . However, the electromagnet 22
is composed of an E-shaped excitation core 24 and a coil 26 wound around a central core portion 24a of this core 24, with the central core portion 24a and left and right core portions 24b, 2
4c are configured to have different polarities. in this case,
The central iron core part 24a is divided into two parts, and a magnet 2 is placed between them.
8 are held between each other to hold the divided central core portions 24a in different polarities. Note that if the width of the end of the central core portion 24a of the excitation core 24 configured as described above is set to be equal to or greater than the width of the end of the magnet 20 facing it, the width of the controller portion 18, which will be described later, will be improved. The return operation to the neutral state can be made even better. Furthermore, the magnet 20 is configured so that the left and right ends have different polarities.

In this way, in this embodiment, the excitation cores 24 of the electromagnets 22 are configured to be biased to different polarities, and when the steering member 14 is in the neutral state, the controller section 18
The magnet 20 is attached to the central core portion 24 of the excitation core 24.
It is configured so that it faces directly in front of a. Therefore, for example, if the polarity of the magnet 20 is set as shown in the figure and the coil 26 is energized so that the polarity of the central core portion 24a of the electromagnet 22 becomes the north pole, the magnet 20 will
The pole side and the N pole side are the iron core part 24 of the electromagnet 22, respectively.
a, 24c, and the S pole side of the magnet 20 is in a repulsive relationship with the iron core portion 24b of the electromagnet 22, causing the controller portion 18 to deviate to the left about the support shaft 16 (see FIG. 2). On the other hand, if the coil 26 is energized so that the polarity of the central core portion 24a of the electromagnet 22 becomes the S pole, the magnet 20 will have its N-pole side and S-pole side connected to the iron core portion 24a of the electromagnet 22, respectively.
24b, and the N pole side of the magnet 20 is in a repulsive relationship with the iron core portion 24c of the electromagnet 22, causing the controller portion 18 to deviate to the right about the support shaft 16. Note that when the coil 26 is energized in this manner, the excitation action of the magnet 28 held between the central core portion 24a of the excitation core 22 is almost canceled out, and the polarity is maintained at one of the two sides. Ru.

Therefore, according to this embodiment, by changing the energizing state of the electromagnet 22, the wheels 12, 12 can be controlled to turn in either the left or right direction. Furthermore, if the electromagnet 22 is deenergized, the central iron core 24a of the electromagnet 22 is in a non-energized state.
Since the divided ends are held with different polarities by the magnet 28, the magnet 20 of the controller section 18
A suction effect is generated between the two and the control element 18 and the steering member 14 can be reliably returned to the neutral state as shown in FIG.

The direction changing device having the above configuration can be suitably applied to a traveling toy using a radio control system. In this case, the electromagnet 22 can be constituted by a pair of coils 26a and 26b wound around the central core portion 24a of the exciting core 24 so that current flows in different directions, respectively, as shown in FIG. Therefore, by receiving a predetermined command signal by the radio receiver 30, one of the coils 26a, 26b is connected to the power supply, and the polarity of the excitation core 24 is changed according to the properties of each coil 26a, 26b. , affects the magnet 20 of the controller section 18. As a result, by transmitting two different command signals from a wireless transmitter (not shown), the polarity of the excitation core 24 of the electromagnet 22 is changed, thereby making it possible to turn the wheels 12, 12 to the left or to the right. It can be controlled as follows. In addition, the electromagnet 22
When deenergized, the magnet 20 of the control element 18 becomes attracted to the center core part 24a of the electromagnet 22, the control element 18 and the steering member 14 are immediately held in a neutral state, and the wheels 12, 12 are brought into a straight-ahead state. can do.

The electromagnet 22 may also have a circuit configuration in which a single coil is wound around a part of the excitation core 24, and the polarity of the single coil can be appropriately reversed on the radio receiver 30 side.

〔Effect of the invention〕

As is clear from the above-mentioned embodiments, since the device of the present invention is composed of a combination of an electromagnet and a magnet, it is not only simple in construction, but also can significantly reduce manufacturing costs, and can be used to control wireless operating devices. The operation is easy, there is no malfunction, and stable and reliable direction change control can be achieved at all times. In particular, in the device of the present invention, since the steering member and the control element are integrated, the configuration of the control element is extremely simplified, and the return of the steering member to the neutral state when the electromagnet is deenergized is made easier and more reliable. can be realized.

In addition, in the above-mentioned embodiment, a case was shown in which a magnet was provided in the control element part, but even if an electromagnet is placed in the control element part and a magnet facing the electromagnet is fixed to the vehicle body base, the same effect as in the above embodiment is achieved. A similar effect can be obtained.

In addition, regarding the configuration of the excitation core of the electromagnet, one of the cores located on either side of the central core is omitted, and the configuration is such that only one of the right and left rotations is controlled. You can also.

Although the preferred embodiments of the present invention have been described above, it goes without saying that various improvements and changes can be made without departing from the spirit of the present invention.

[Brief explanation of drawings]

FIG. 1 is a structural diagram of a main part of a vehicle body of a traveling toy showing an embodiment of the device of the present invention, and FIG. 2 is an explanatory diagram showing the operation of the controller section and the control mechanism of the electromagnet shown in FIG. 1. 10...Vehicle base, 12...Wheels, 14...
Steering member, 16... shaft, 18... controller section, 20... magnet, 22... electromagnet, 24... exciting iron core, 26... coil, 30... radio receiver,
28...Magnet.

Claims (1)

[Scope of Claims] 1. An electromagnet in which both ends of an excitation core energized with different polarities are oriented in the same direction, and a magnet in which both left and right ends are held with different polarities are arranged facing each other on a vehicle body, and the electromagnet The end of one of the excitation cores is divided into two parts, a magnet is sandwiched between the parts, and the electromagnet or magnet is fixed to one end part of a control part formed in the middle part of a steering member pivotably supported in a horizontal plane. A direction changing device for a running toy, characterized in that: 2. In the direction changing device for a traveling toy as set forth in claim 1, the electromagnet has an E-shaped core structure, the central core is divided into two parts, the magnet is held between them, and the divided central core part is divided into two. A direction changing device for a running toy, in which a coil is wound around a central iron core, and a magnet is arranged to face the central iron core. 3. In the device for changing the direction of a traveling toy as set forth in claim 1 or 2, the electromagnet is provided with a double coil wound with a different polarity around the excitation core. Device. 4. In the direction changing device for a traveling toy according to claim 1 or 2, the electromagnet winds a single coil around the excitation core, and energizes the single coil by reversing the polarity. A direction changing device for a traveling toy configured to enable 5. In the direction changing device for a traveling toy according to any one of claims 1 to 4, the electromagnet is fixedly arranged on the vehicle body, the magnet is fixed to one end of the control part, and the electromagnet is turned off. A direction changing device for a traveling toy, which is configured to maintain a steering member in a neutral state by an attractive relationship between the magnet and an iron core of an electromagnet when the magnet is turned on. 6. In the direction changing device for a traveling toy according to any one of claims 1 to 5, the electromagnet is configured to energize or deenergize a coil by a radio control system. Direction changing device.